8CH DTMF MT8870 Decoder Relay Phone Remote Control Switch for AC DC Motor LED CNC Smart Home PLC DC12V

$36.80
  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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  •   Shipping Methods

    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

    Refunds

    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Features:
 
– Working voltage: DC 12V(with reverse polarity protection)
– Operating Current: Standby 11-13 MA, 1 relay ''open'' 44MA, 2 relays ''Open'' 77MA, 3 relays ''Open'' 110MA, 4 relays''open'' 140MA, 5 relays open 170MA,6 relays open 197MA,7 relays open 223MA,8 relays open 247MA.
– 8 modes of operation:Non-locking (Momentary ), self-locking (Toggle),inter-locking (Latch), 5/20/60/120/250-second delay
– The default control command is 1/2/3/4/5/6/7/8.Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4; control commands can be changed any 1-4 bits. 
– Size: 94.1 x 62.2 x 19.4 mm
– Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC
 
Note:
 
1. Please use a small ripple DC power supply (Recommended: Power with  earth wire)
2. Please adjust the sound output to 80-90%.
 
Typical Applications:
 
Home lighting system  
DTMF Remote control switch 
Smart Home / Home Automation
DC 12V LED lighting 
Fluorescent lamp 
12V DC Motor 
Fluorescent lamp 
Automotive electronics 
Industrial automation and control

Control 8 Channel DC 12V electrical equipment: LED / Automotive electronics

 AD22A08_12
 
 
General electrical equipment control:DC 1-110V or AC 85-265V
AD22A08_12
 
 
 

Use Method:

This is the DTMF audio controller with four channels, any phone or fixed telephone with DTMF key code remotely controls product relay ''open'' and ''close''.(the majority of smartphones and functions machine are DTMF code). Our software ''DTMF Dial'' (installed in a computer) can be also provided to control relays.

AD22A08_7
As shown above, by phone remote control relay. You need two phones, one as a receiver (phone_1), the other one as a transmitter (phone_2); mobile phone_1 connected by DTMF audio cable 3.5MM audio controller (the controller to be powered), and then using phone_2 ( may be a fixed telephone) call the phone_1, phone_1 answered, so that two phone call each other; then dial 1/2/3/4 by phone_2 keypad to control four relays .

 

 

 
AD22A08_9
As shown above, you can install one of our ''DTMF Dial'' software in your computer, through the software control DTMF audio controller. At first, use 3.5MM audio cable to the computer video port and audio port controller, then click on the software to control relays 1/2/3/4.

Caution: 
 

1. DTMF audio controller must use stable work of DC 12V power supply (recommendations 1A or above the power adapter)
2. remote control the controller by a mobile phone, the receiver must be the phone with 3.5MM audio interface, the transmitter can be a cell phone or landline
3. as a receiver of the phone or a computer installed the ''DTMF Dial'' software must output a sound (not muted), or they will not control relays.
 
Glossary:
 
NO: Normal open
COM: Common terminal
NC: Normal Connect
Relay open: COM connected NO but disconnected NC
Relay close: COM disconnected NO but NC connected COM.
Non-locking (Momentary ): Dial 1 (2/3/4 is the same), relay 1 ''Open'', relay close after 1 second delay
Self-locking: Dial 1, relay 1 ''Open'', dial 1 again, relay 1 ''off'', and so on
Inter-lock: Dial 1, relay 1 ''Open'', other relays ''Off''; dial 2, relay 2 ''Open'', other relays ''off'', and so on
''Delay'': Dial 1, relay 1 ''Open'', relay 1 ''Close'' after a time 

Mode Selection:

 

AD22A08_11

8 modes of operation, electric iron jumper (picture above) on the pads

 



Package Included:

1 x 8CH DTMF MT8870 Decoder Relay




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